Bananas are to be cooled from 28oC to 12oC at a rate of 1140 kg/h by a

Question:

Bananas are to be cooled from 28oC to 12oC at a rate of 1140 kg/h by a refrigerator that operates on a vapor-compression refrigeration cycle. The power input to the refrigerator is 8.6 kW. Determine
(a) The rate of heat absorbed from the bananas, in kJ/h, and the COP.
(b) The minimum power input to the refrigerator.
(c) The second-law efficiency and the exergy destruction for the cycle. The specific heat of bananas above freezing is 3.35 kJ/kg·oC.